M/418 - Fertilizers

The document specifies a method for the chromatographic determination of the chelating agent [S,S]-EDDS in fertilizers. The method allows the identification and the determination of the total concentration of the water soluble fraction of this chelating agent. It does not allow to distinguish between the free form and the metal bound form of the chelating agent. This method is applicable to EC-fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, copper, iron, manganese and zinc covered by Regulation (EC) No 2003/2003. It is applicable to a mass fraction of the metal chelated of at least 0,35 %.

This European Standard specifies a method for the chromatographic determination of the chelating agent [S,S]-EDDS in fertilizers. The method allows the identification and the determination of the total concentration of the water-soluble fraction of this chelating agent. It does not allow distinguishing between the free form and the metal bound form of the chelating agent.
This method is applicable to EC fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, copper, iron, manganese and zinc, covered by Regulation (EC) No 2003/2003 [4]. It is applicable to a mass fraction of the metal chelated of at least 0,35 %.
NOTE 1   The substance EDDS (ethylenediamine-N,N'-disuccinic acid) exists as several different stereo isomeric forms. [S,S] (with CAS Number 20846–91–7), [R,R] and [R,S] optical isomers are possible. [S,S] and [R,R] are mirror images with equal chemical characteristics. However only the [S,S] isomer is biodegradable. When both are present, they form the racemic mixture. The [R,S] isomer (the meso isomer) is only slowly biodegradable.
Only the [S,S]-EDDS isomer is allowed by the Regulation (EC) No 2003/2003. Since the Cu chelate of the [R,R]-EDDS isomer presents the same stability than the [S,S]-EDDS, both should coelute. The absence of [R,S]-EDDS indicates that only a pure isomer ([S,S] or [R,R]) exist. An additional test based on polarimetry can be used to ascertain the isomeric characteristic of the sample, or the standard.

This European Standard specifies a method for the determination of the content of mercury in
fertilizers !and liming materials" after extraction with aqua regia and the detection of mercury by
vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled
plasma-atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.
!NOTE The term fertilizer is used throughout the body of this European Standard and includes
liming materials unless otherwise indicated.

This European Standard specifies a method for the determination of the content of arsenic in
fertilizers and liming materials using inductively coupled plasma-atomic emission spectrometry (ICPAES)
after aqua regia dissolution." Limits of quantification are dependent on the sample matrix as
well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.
!NOTE The term fertilizer is used throughout the body of this European Standard and includes liming
materials unless otherwise indicated.

This European Standard specifies a method for the determination of the content of mercury in fertilizers and liming materials after extraction with aqua regia and the detection of mercury by vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled plasma-atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.
NOTE   The term fertilizer is used throughout the body of this European Standard and includes liming materials unless otherwise indicated.

This European Standard specifies a method for the determination of the content of arsenic in fertilizers and liming materials using inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.
NOTE   The term fertilizer is used throughout the body of this European Standard and includes liming materials unless otherwise indicated.

This European Standard specifies a chromatographic method which allows the identification of heptagluconic acid (HGA) in fertilizers containing heptagluconic acid metal complexes.
This method is applicable to EC fertilizers containing complexed micro-nutrients, which are covered by Regulation (EC) No 2003/2003 [1].

This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers and liming materials.
Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg.
Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.
NOTE 1   In case of reducing or oxidizing fertilizer matrix, no valid Cr(VI) content can be reported.
NOTE 2   The term fertilizer is used throughout the body of this European Standard and includes liming materials unless otherwise indicated.

This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers and liming materials.
Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg.
Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.
NOTE 1   In case of reducing or oxidizing fertilizer matrix, no valid Cr(VI) content can be reported.
NOTE 2   The term fertilizer is used throughout the body of this European Standard and includes liming materials unless otherwise indicated.

This European Standard specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.
NOTE   Due to significant interference from Cu, Fe and Mn, no valid results can be reported using this method for fertilizer matrices containing high concentrations (>/= 10 %) of these micro-nutrients.

This European Standard specifies a chromatographic method which allows the identification of heptagluconic acid (HGA) in fertilizers containing heptagluconic acid metal complexes.
This method is applicable to EC fertilizers containing complexed micro-nutrients, which are covered by Regulation (EC) No 2003/2003 [1].

This European Standard specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.
NOTE   Due to significant interference from Cu, Fe and Mn, no valid results can be reported using this method for fertilizer matrices containing high concentrations (>/= 10 %) of these micro-nutrients.

This document specifies a method for the quantitative determination of the urease inhibitors N-(n-Butyl)thiophosphoric acid triamide (NBPT, CAS-No. 94317-64-3) and N-(n-Propyl)thiophosphoric acid triamide (NPPT, CAS-No. 916809-14-8) content in urea based fertilizers using high-performance liquid chromatography (HPLC).

This European Standard specifies a method for the quantitative determination of the urease inhibitors N-(n-Butyl)thiophosphoric acid triamide (NBPT, CAS-No. 94317-64-3) and N-(n-Propyl)thiophosphoric acid triamide (NPPT, CAS-No. 916809-14-8) content in urea based fertilizers using high-performance liquid chromatography (HPLC).

This European Standard specifies a method for the determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP, CAS-No: 202842-98-6) in mineral N containing fertilizers using high-performance liquid chromatography (HPLC).

This European Standard specifies a method for the determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP, CAS-No: 202842-98-6) in mineral N containing fertilizers using high-performance liquid chromatography (HPLC).

The document specifies a method for the determination of N-(2-nitrophenyl)phosphoric acid triamide (2-NPT) in urea and fertilizers containing urea using high-performance liquid chromatographie (HPLC). The sample of fertilizer is dissolved in water or extracted with water. 2-NPT is determined using reversed phase high-performance liquid chromatographie with an UV-detector.

This European Standard specifies a method for the determination of N-(2-nitrophenyl)phosphoric triamide (2-NPT) in urea or in fertilizers containing urea using high-performance liquid chromatography (HPLC).

EN 16317:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Precision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: Fertilizers and liming materials.

EN 16320:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Prcision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read:: Fertilizers and liming materials.

EN 16318:2013 will be amended taking into account liming materials in the scope of the method. Clause 7 Precision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: fertilizers and liming materials.

EN 16319:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Pecision and Annex A Results of the inter-laboratory tests will be amended by addition of the precision data received from the inter-laboratory tests performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: Fertilizers and liming materials.

EN 16319:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Pecision and Annex A Results of the inter-laboratory tests will be amended by addition of the precision data received from the inter-laboratory tests performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: Fertilizers and liming materials.

EN 16317:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Precision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: Fertilizers and liming materials.

EN 16318:2013 will be amended taking into account liming materials in the scope of the method. Clause 7 Precision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read: fertilizers and liming materials.

EN 16320:2013 will be amended taking into account liming materials in the scope of the method. Clause 10 Prcision and Annex A Results of the inter-laboratory test will be amended by addition of the precision data received from the inter-laboratory test performed in 2013 analysing samples of liming materials. The main title of the document will be extended to liming materials to read:: Fertilizers and liming materials.

This European Standard specifies a method for the determination of the content of mercury in fertilizers after extraction with aqua regia and the detection of mercury by vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled plasma-atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.

This European Standard specifies a method for the determination of the content of arsenic in fertilizers using inductively coupled plasma-atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.

This European Standard specifies a method for the determination of the content of arsenic in fertilizers using inductively coupled plasma atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.

This European Standard specifies a method for the determination of the content of mercury in fertilizers after extraction with aqua regia and the detection of mercury by vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled plasma atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.

This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers. Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg. Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.

This European Standard specifies two methods for the determination of the content of soluble chromate in fertilizers.
Method A specifies the determination of chromate after extraction with water by photometry. This method can be used to determine Cr(VI)-mass fractions in solids higher than 1 mg/kg.
Method B specifies the determination of chromate by alkaline digestion and ion chromatography with spectrophotometric detection. This method can be used to determine Cr(VI)-mass fractions in solids higher than 0,1 mg/kg.
NOTE   In case of reducing or oxidizing fertilizer matrix, no valid Cr(VI) content can be reported.

This European Standard specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma-atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.

This European Standard specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.
NOTE   Due to significant interference from Cu, Fe and Mn, no valid results can be reported using this method for fertilizer matrices containing high concentrations (>/= 10 %) of these micro-nutrients.

This document specifies a method for the determination of the content of arsenic in fertilizers using inductively coupled plasma atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependant on the sample matrix as well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.

This document specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependant on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.

This document specifies a method for the determination of the content of mercury in fertilizers after extraction with aqua regia and detection of mercury by vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled plasma atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.

This Technical Specification specifies a method for the determination of the content of cadmium, chromium, nickel and lead in fertilizers with inductively coupled plasma atomic emission spectrometry (ICP-AES) after extraction with aqua regia. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 0,3 mg/kg for Cd and 1 mg/kg for Cr, Ni and Pb.

This Technical Specification specifies a method for the determination of the content of arsenic in fertilizers using inductively coupled plasma atomic emission spectrometry (ICP-AES) after aqua regia dissolution. Limits of quantification are dependent on the sample matrix as well as on the instrument, but can roughly be expected to be 1,5 mg/kg for As.

This Technical Specification specifies a method for the determination of the content of mercury in fertilizers after extraction with aqua regia and the detection of mercury by vapour generation (VG) coupled to an atomic absorption spectrometer or an inductively coupled plasma atomic emission spectrometer. A limit of quantification of 0,01 mg/kg is to be expected.